Thinking Abstractly (OCR A-Level Computer Science): Flashcards
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Practise the cards
11 cards from this deck
Definition of abstraction
Definition of abstraction
Reducing complexity by hiding unnecessary details to highlight essential features
3 types of abstraction
3 types of abstraction
Data, Procedural, Object-Oriented
Data abstraction
Data abstraction
Focuses on what data matters, hides how it's stored
Procedural abstraction
Procedural abstraction
Focuses on what function does, not how
Object-oriented abstraction
Object-oriented abstraction
Uses objects to model real-world entities, exposing only relevant data/behaviours
Abstraction benefit: complex systems
Abstraction benefit: complex systems
Breaks into simpler, understandable components
Abstraction benefit: reusability
Abstraction benefit: reusability
Abstract components reused in different projects
Abstraction benefit: maintainability
Abstraction benefit: maintainability
Changes to implementation don't affect abstract interface
Over-abstraction issue
Over-abstraction issue
Too many layers make system overly complex
Under-abstraction issue
Under-abstraction issue
Results in cluttered, repetitive code that's hard to maintain
Abstraction vs encapsulation
Abstraction vs encapsulation
Abstraction simplifies; encapsulation protects data